Not yet. I wanted a prettier way to use standard deviation for assessing the most likely value for estimate line items as well as saving those in a nice convenient way. So I built this. Eventually this will branch out to have more features, specifically for agency-style businesses where they may have several worker types with associated internal / external rates etc. For now though, I'm just gathering feedback as to whether this is a problem for people or not.
Nitpicks, the term you want when you've been using "standard deviations" is either:
Distribution - general term for the shape of the relationship between probability and task length.
Triangular distribution or PERT - the specific shape of least/greatest/most likely you are using
Risk or Probability - the general concept that things are not definite and involve chance.
And where you are using "Total" for each item, you want "Mean" or "Median" depending which it is.
And I don't care to know the total mean or median time for scheduling, because the project will exceed that time 50% of the time (if it's the median, more if it's mean with long-tailed distributions) I would instead want some high quantile such that the chances of exceeding the schedule/budget are low (and which quantile I pick depends on my project, what's at risk if the schedule is exceeded).
Just spent 5 minutes playing with it, looks very nice .. I especially like the visual cues about what is and isn't editable, and the whole app flows pretty nicely .. will come back and have another 5 minutes play with it in a month or so, in case you're going to push things forward .. I'd love to see some graphics in there, rendering the time-range data and showing relevant gravity between them, somehow, akin to some sort of waterdrop diagram .. anyway, good stuff, well done.
